/Engine/Source/Runtime/SlateCore/Public/Brushes/SlateRoundedBoxBrush.h
Creates and initializes a new instance with the specified color and rounds based on height
template<typename FillColorType, typename OutlineColorType> FSlateRoundedBoxBrush ( const FillColorType & InColor, const OutlineColorType & InOutlineColor, float InOutlineWidth, const [UE::Slate::FDeprecateVector2DParameter](API\Runtime\SlateCore\Types\FDeprecateVector2DParameter) & InImageSize )